The method relies on clean joints, so liquid solder flux is often used to make sure ... [Ahmad Tabbouch] has a method that uses Kapton tape to act as a temporary solder mask on diy boards.

Unsurprisingly, the process starts out with plenty of flux and some hot air to preheat the pads. he then tins the pads with a conventional soldering iron. The penultimate step is to align the ...